Calculating-machine.



No. 663,890. Patented Dec. I8, |900.'

H. .1. HANsoN'.

CALCULATING MACHINE.

(Application led June 4,'1900.)

(No Model.) 4 Sheets-Sheet l.

THE Nonms PETERS co., Preo'ron\no.w,\swnsww, u. c.

[10,663,890. Patentod Dec. |8,- |900.

H. J. HANSON.

CALCULATING MACHINE.

ummm med .nm 4, moo.,

4 Sheets- Sheet 2.

(Nulodol.)

J I d In-HHWWWHHHummm---:WAMMMHUNMHnu 2 7 7 fnv/w Awww@ 5 rl 7m: mums FUER: co. r-H wAsmNnmN n c No. 663,890. l Patented Dec. I8, |900. H. J. HANSON.

CALCULATING MACHINE.

'Application filed June 4, 1900.)

(N0 MOd- 4 Sheets-Sheet 3.

d" Si '7 6 50 sa 00 mi Nonals Pnzns so.. Puoaumo., wAsmNGToN. u c.

No. 663,890. Patented Dec. I8, |900. H. J. HANSON.

CALCULATING MACHINE.

(Application filed June 4, 1900.)

(No Model.) 4 Sheets-'Sheei 4.

WMM@ www?.

UNITED STATES PATENT EEICE.

HANS J. HANSON, OF HANSONVILLE, MINNESOTA.

CALCULATING-IVIACl-llNE.

SPECIFICATION forming part of Letters Patent N o. 663,890, dated December 18, 1900.

Application filed June 4,1900. SerialNo.18,979. iNo model.)

To all whom, t may concern:

Be it known that I, HANS J. I-IANsoN, a citizen of the United States, residing at Hansonville, in the county of Lincoln and State of Minnesota,have invented certain new and useful Improvements in Calculating-Machines; and 1 do hereby declare the following to be a full, clear, and exact description of the in vention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to calculating -machines, and has for its especial object to provide such a machine of simple construction and small cost and by the use of which long columns of Afigures may be accurately added and other computations made. l

To the above ends the invention consists of the novel devices and combinations of devices hereinafter described, and delined in the claims.

The invention is illustrated in the accompan ying drawings, wherein like characters indicate like parts throughout the several views.

Figure 1 is a view, partlyin plan and partly in horizontal section, on the line Qc oc. of Fig. 2, showing my improved calculating-machine in its preferred form. Fig. 2 is a vertical section approximately on the line m2 m2 of Fig. l. Fig. 3 is a vertical section taken principally on the line ocssof Fig. 2, but with some parts shown as cut by an offset plane. Fig. e is a detail in section approximately on the line x4 c4 of Fig. 3. Fig. 5 is a front elevation of the keyboard portion of the machine, some parts being broken away. Fig. 6 is a vertical section approximately on the line @c6 6c of Fig. 1 looking toward the right, some parts being broken away and others removed; and Fig. 7 is a detail View of a portion of one side of the case.

The numeral 1 indicates the case of the machine, the same, as shown, having a lower compartment in which a drawer 2 is mounted to work below the false bottom 3 of the said case. The upper and outer portion of the case is preferably formed by sheet-metal sections 4 and 5, the latter of which is preferably detachable for a purpose which will hereinafter appear. The section' 4f is provided with a series of slots G, spaced apart laterally, as best shown in Figs. 2 and 5. There are nine of these slots 6 and the purpose ot" the same will hereinafter appear.

Suitably mounted at their inner ends on a transverse pivot-rod 7 is a series of key-rods 8, nine in number, the free outer ends of which work one in each of the slots 6 of the plate el. These key-rods S are subject to springs 9, which yieldingly hold the same up` ward, and at their outer ends they are provided with finger-pieces or heads lO, marked consecutively from the left to the right with the numerals ordigits 1 to 9, inclusive.

Mounted for pivotal or oscillatory movement within the case 1 and on a horizontallyq extended shaft 11 is a lever 12, preferably of the rectangular form shown. The lever or frame 12 is adapted to be moved from the position indicated by full lines into the position indicated by dotted lines in Fig. 2, and at its forward edge it is provided with a stepped plate 13, preferably bent to form the segment of a cylinder. Said plate 13 has nine steps, varying in height from the left toward the right'and standing one under each of the keyrods S, as best shown in Fig. 5.

Secured on the intermediate portion of the rotary shaft 11 is a large units-wheel7 14, the periphery of which is subdivided into one hundred equal parts and marked consecutively with the numerals 1 to 100. It also has preferably at its periphery a ratchetflange 15, with one hundred teeth. Furthermore, in one face the wheel 14 is provided with a spiral protlle groove or channel 16, in which the laterally-turned free end of a stoprod 17, pivoted at its lower end at lb, is mounted to work. This profile groove 1G permits several complete rotations-as illustrated about ive and a half rotations of the said wheel 14.

The oscillating lever or frame 12 has a spring-pawl 19, the free end of which normally engages with the teeth of the ratchetflange 15. A spring retaining-pawl 20, shown as supported at its lower end by the false bottom 3, also engages the said ratchet-teeth. Both pawls 19 and 20 are adapted to be thrown and held in inoperative positions, so as permit the return movement of the wheel 14 by IOO g2 eeaseo means of a trip, preferably constructed as follows:

21 indicates a spring-arm secured at its lower end to the false bottom 3 and provided at its free upper end with a segmental flange or head 22, which by movement toward the right is adapted to engage the free ends of the pawls 19 and 20 and to hold the same in inoperative positions.

23 indicates an operating-rod which is pivoted at its lower end, as shown, on a rod 2t and is provided at its upper end with a linger-piece or head 25. The upper end of said rod works through a slot 26, cut in the case 1 and provided at one end with an offset notch 27. The rod 23 is connected to the springarm 21 by aconnecting link or strap 2S. The spring tension of the arm 21 tends to hold the parts in their normal positions, (indicated by full lines in Fig. However, by moving the rod and the parts operated thereby into the dotted-line positions indicated in Fig. 3 and then moving the free end of said rod 23 into the notch or extremity 27 of the slot 2G the pawls 19 and 2O are locked in released or inoperative positions.

For cooperation with the so-callet unitswheel 14- is a carrying-wheel 29, which, as shown, is mounted in close proximity to the said wheel 141 by means of a shaft 230, journaled in suitable bearings 231 32 on the case 1. 0n its face or periphery the carryingwheel 29 is marked with the digits 0, 1, 2, 3, 4, 5, and it is provided with several teethas shown six teeth 33. The units-wheel 14 is provided with a pin or projection 34, which at each complete rotation of said wheel engages one of the teeth oi' the wheel 29 and moves said latter wheel one step in advance. Hence it will be understood that the hundreds are carried from the units-wheel 14- onto the carryiilg-wheel 29. rlhe return movement of the units-wheel 14- will return the carryingwheel to its normal position. In the normal positions ofthe two wheels 14 and 29 the zeromarks of the said two wheels register, respectively, with alined perforations or slots 35 and 36 cut in the detachable case-section 5, as best shown in Fig. 5.

To readily return the wheels le and 29 to their normal positions after a column of iigures has been added, a flexible cord 37 is applied to a hub or drum portion 3S of said unitswheel 1eand is extended over a guide-sheave 39, suitably mounted on the false bottom 3 of the case 1. Preferably the cord 37 is then passed through a suitable perforation e0 in the false bottom 3 and is dropped into the drawer 2, so that access thereto is easily afforded by drawing out the said drawer.

The oscillating lever or frame 12 is normally yieldingly held, as indicated by full lines in Fig. 2, by means of a leaf-spring 41, one end of which is applied to the top of the case 1 and the other end of which, as shown, is applied to the rear or inner end of the said frame 12. The spring el is provided with a branch spring portion l2, the free end of which is pronged at 4 3 and embraces the shaft 11 of the units-wheel 14. lVith this construction the upward movement of the inner end of the frame or lever l2 compresses the spring e1, and the downward depression of the said spring tends to straighten out the springsection t2, and thus to force the pronged end 43 more tightly against the shaft 11. This puts the said shaft under frictional tension to stop when the said frame or lever 12 is brought to a stop, and thus tends to prevent the units-wheel from being thrown too far under the action of momentum. Other friction devices may also be provided-such, for instance, as the leather clip 4e, which is secured on the frame or lever 12 and engages the shaft 11. A 'friction-washer r15 is also shown as applied to the shaft 30 oi' the carrying-wheel 29 for fric-tional engagement with a partition ed within the case 1.

The operation of the mechanism so far described is substantially as follows, and it may be here stated that this device is especially adapted for adding very long columns ofquite small sums---such, for instance, as would usually be found in credit-hooks: ln adding the first column of figures the keys corresponding to the successive numerals are depressed and the total amount is registered on the units-wheel, or if the sum oi' the column exceed one hundred it will appear recorded on the two wheels 14 and 29. To illustrate, suppose the first column ol figures amounts to 255. rlhe numeral 2,7 indicating hundreds, will appear through the slot or sightopening 36, while 55, in line therewith, will appear through the slot or sight-opening Hence the numeral 5 would be put down in the units-column and 25 would be carried or added into the tens column, and so on until the whole sum is secured. Thus it will be seen that if the proper keys are depressed the addition of a column must ne correctly made and indicated. ly successively adding the units,tens, and hundreds columns, and so on, in the manner above indicated columns of figures consisting of sums oi any length maybe easily a nd correctly added even by a person having but a very slight matheinatical training. It will of course be understood that the units-wheel la should be returned to normal position and started anew for the addition of each successive column. rllhe spiral groove or channel lo' limits the number of possible rotations of the unitswheel to approximately five and a half; but this slot may be varied within any practical limits desired. The engagement of the extremities of the said channel with the stoparm 17 limits in the one case the normal position of the units-wheel and in the other its extreme position away from normal. The normal position of the said units-wheel is indicated in Fig. 2.

IOO

IIO

l place on the said plate 49.

By means of part of the mechanism already described and additional devices immediately to be described various other computations than the additions above indicated may be performed on this machine. To this end the sides of the case 1 are provided with vertical channels or guides 47, in which verticallymovable blocks 4S are mounted to move. The blocks 48 are connected to the ends of a transversely-extended channel-bar 49', and the oscillating lever or frame 12 is provided at its inner end with oppositely-projected lugs or fingers 12a, which underlie the said blocks 4S and control the vertical movements of said blocks 43 and channel 49. The back of the case 1 is extended upward, as shown at 1a, and spaced apartfrom but just forward of this portion 1rt is a thin guide plate or rail 49, provided,preferably,with a slot 50. An indicator head 5l is mounted to slide transversely over the guide-plate 49, being shown as provided with overturned lips 52, which hold it in At its upper and lower ends said head 51 is provided, respectively, with notches 53 and 54 for a purpose which will presently appear.

The numeral 55 indicates a card or chart which is graduated or marked on its face, as presently noted, and when in operative position is supported by the channel bar or piece 49/,which receives vertical movement with the sliding heads 48. The card or chart 55 is adapted to be dropped into working position, as just indicated, by passing it between the section 1a of the case 1 and the guide-plate 49 and through a suitable slot 5G in the top of the case.

The numeral 57indicates a so-called quantity-strip, which is subdivided and marked lengthwise a-nd transversely of the machine with numerals indicating certain numbers of pounds, bushels, yards, or other quantities of measure. This quantity-strip is preferably loosely supported in a suitable seat 58, formed in the upper portion of the case extension 1, as best shown in Figs. 2 and 3.

The chart or card 55 is lined longitudinally to correspond to the number of different positions which the lifting lever or frame 12 may be given under the actions of the various actuating-keys 8, which in the machine described are nine in number. Ve will assume that the particular chart 55 is graduated or marked to indicate the selling price or sum which should be received for wheat or other produce in quantities corresponding to the numbers on the quantity-strip 57 ata selling price varying from fifty to fifty-nine cents per bushel. More specifically stated, the top line of the chart, which is normally clearly seen through the slot 50 of the guide-plate 49, is marked just below the numerals on the quantity-strip 57 toindicate the values of the different quantities or numbers of bushels of grain or produce at fifty cents per bushel. Hence by moving the indicator-head 51 so that its upper notch 53 displays the figure 10 of the quantity-strip its lower notch 54 displays the $5 mark on the chart 55. This of course indicates that ten bushels of grain at fifty cents per bushel are worth five dollars.

It is not of course necessary to operate the keys 8 in calculating the value of any amount of grain or produce at fty cents per bushel; but for any other price varying from fifty-one to fifty-nine, inclusive, cents per bushel the said keys must be depressed, so as to raise the chart 55 as an entirety. For instance, to determine the value of seventy bushels of wheat at fifty-nine cents per bushel the head 51 should be moved so that its upper notch 53 displays the figure 707 on the quantitystrip 57 and then the actuating-key marked with the numeral 9 should be depressed to its limit. This will raise the chart 55 upward to its limit, so that the amount $41.30 is displayed in the notch 54 of the head 51.

From the above statements the principle of graduation or arrangement of the markings of the chart 55 will be understood.

1n practice l propose to provide a series or plurality of quantity-strips and charts marked in various denominations for performing various'calculations. For instance, I may provide interest tables, subtraction and multiplication tables, tables for determining prices or values of lumber, dsc.; but the principle of construction and operation will be the same throughout all of such devices, and hence l do not deem it necessary for the purposes of this case to carry out specific illustrations thereof further than as above given.

The machine above described is of course capable of many modifications within the scope of .my invention.

What l claim, and desire to secure by Letters Patent of the United States, is as follows:

1. The combination with a units-registering wheel marked from 1 to 100 and capable of several rotations, of a spiral guide carried by said wheel, a stop cooperating with said spiral guide anda differential feed device for said recording-Wheel, substantially as described.

2. The combination with a units-registering wheel marked from l to 100 and provided with a spiral profile groove, of a pivoted stop working in said spiral groove to limit the movements of said wheel, and a differential feed device for the said wheel, substantially as described.

3. The combination with a registeringwheel, of a friction device for preventing overmovements ofsaid registering-wheel, of a differential feed device for said registeringwheel, and a device whereby the movement of said feed device increases the friction of said friction device, substantially as described.

4. rThe combination with the units-registering wheel 14 having the ratchet-teeth 15, of the oscillating frame 12 with spring-pawl 19,

IOS

IIO

the retaining-paw] 20, a differential feed de- In testimony whereof I affix my Signature vice operating said lever l2, and :i releasing in presence of mvo Witnesses.

device comprising the arm 21 with segmental Aflange 22, the slot 26, 27, iu the maehiueease, HANS J HANSON 5 and the rod 23 Working through Said slot 26,

Witnesses:

27, and Connected to said :mn 2l, subs'tzm- J. G. LUND, tially as described. GUSTAV EPJCKSON,l 

